Hawking Radiation and Quantum Anomaly in AdS2/CFT1 Correspondence

Details Hawking Radiation and Quantum Anomaly in AdS2/CFT1 Correspondence Hawking Radiation and Quantum Anomaly in AdS2/CFT1 Correspondence

2008-11-11

arxiv.org/abs/0811.1741v3

JHEP 0901:037,2009

Physics

High Energy Physics

High Energy Physics - Theory

14 pages, 1 figure, published version

Scientific paper

10.1088/1126-6708/2009/01/037

In order to understand a boundary description of Hawking radiation in the AdS/CFT correspondence, we investigate the trace anomaly method in AdS$_2$ space. In this method, Hawking radiation is derived from the trace anomaly of the energy-momentum tensor in the bulk. We find a correspondence between the energy-momentum tensor and a composite operator in CFT$_1$ and understand the anomalous properties of the energy-momentum tensor in terms of this composite operator. By using this correspondence, we reproduce Hawking radiation from the boundary description. In addition, we find a correspondence between higher-spin currents in the bulk and composite operators in the boundary.

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